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Cooler Master Nepton 280L Liquid CPU Cooler Review

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Cooler Master Nepton 280L Liquid CPU Cooler Review

By Tom Jaskulka

Manufacturer: Cooler Master Ltd., Inc.
Product Name: Nepton 280L
Model Number: RL-N28L-20PK-R1
UPC: 884102025150
Price As Tested: $139.99 (Newegg / Amazon)

Full Disclosure: The product sample used in this article has been provided by Cooler Master.

The 280mm closed-loop all-in-one liquid cooling selection is about to grow by one: The Cooler Master (RL-N28L-20PK-R1) Nepton 280L.  Sporting new dual 140mm JetFlo fans with POM bearings and a new pump design with LED, the 280L is Cooler Master’s answer to the Kraken X60 and H110.  Will an all-new pump, high-flow fans and a 280mm radiator be enough to take on the competition?  Benchmark Reviews will find out if the Nepton 280L can handle an overclocked FX platform and see how it stacks up against the competition.

Cooler Master also sent along two of their new 120mm JetFlo fans (140mm JetFlo fans are included with the Nepton 280L) containing their new POM bearings, most recently tested by Benchmark Reviews with the Cooler Master V8 GTS.  We’ll take a closer look at what makes these fans different and test them on the Nepton 280L as well.

CM_Nepton280_Boxes

Features & Specifications

Model RL-N28L-20PK-R1
CPU Socket Intel LGA 2011 / 1366 / 1150 /1155 / 1156 / 775
AMD Socket FM2 / FM1 / AM3+ / AM3 / AM2
Dimension 75 x 69.8 x 49.1 mm ( 3 x 2.7 x 1.9 inch )
Radiator Dimensions 311 x 139 x 30 mm ( 12.2 x 5.5 x 1.2 inch )
Radiator Material Aluminum
Fan Dimension 140 x 140 x 25 mm ( 5.9 x 5.9 x 1 inch )
Fan Speed 800~2000 RPM (PWM) ± 10%
Fan Airflow 54~122.5 CFM ± 10%
Fan Air Pressure 0.7~3.5 mm H2O ± 10%
Fan Life Expectancy 40,000 hours
Fan Noise Level (dB-A) 21~39 dBA
Bearing Type Rifle bearing
Connector 4-Pin
Fan Rated Voltage 12 VDC
Fan Rated Current 0.3A
Power consumption 3.6W
Pump Life Expectancy 70,000 hrs
Pump Noise Level <25 dBA
Pump Rated Voltage 12 VDC
Pump Power Consumption 2.9W
Compatibility Top: Cosmos II, Cosmos SE, HAF XM, Trooper
Front: Cosmos SE, HAF XB
Warranty 2 years
UPC Code 884102025150

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2 comments

  1. Greg

    I have one of these 280L Neptons cooling a heavily OC’d A10 7850K and it is far and away the best AIO out there. I have thrown an obscene amount of voltage at it for OC’ing review purposes and it has easily taken it by scaling the excellent Jet Flo 140mm fans. I think the SP may be underrated for some reason. Thus far I have been using it in push only mode, but I am going to see what effect push /pull adds.
    A very impressive unit to be sure.

    1. Tom Jaskulka

      Hey Greg, glad you enjoyed the review. The Nepton series certainly seem to be strong performers – you’ll have to check out Aidan’s review of a new Nepton cooler, as it seems to have fixed some of my noise complaints :) Hard to beat those twin 140mm JetFlo fans though…

      I’ve considered a Nepton for my A10-7850K as those things draw a surprising amount of power when overclocked! What do you have yours running at (and on what board)? I can’t seem to get mine completely stable above 4.6 GHz without pushing an uncomfortable amount of voltage. I’d be interested to hear if it’s just my chip (or board, for that matter) :)

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